ANNUL AT A

(Lat.), n. n. pl. A?n(a8n)-nu?(nu)-la(la>)tas. Fr., annul atées. 1, Of Hoffmann, an order of cryptogams including the genera Poly podium, Pteris, Asplenium, and Onoclea; i. e., the ferns provided with a ring (annulus). The term has been recently restricted by Bommer to those terns in which the sporangeium is completely surrounded by a ring. [B, 121, 170.] 2. See ANNELID A.